Mercurial > hg > Applications > TightVNC_orginal
annotate src/main/java/com/glavsoft/rfb/protocol/ReceiverTask.java @ 0:4689cc86d6cb
create TreeViewer2 Repository
author | Yu Taninari <you@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 03 Jul 2012 13:20:49 +0900 |
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children | e654b2e4de64 472a9bcacb21 |
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1 // Copyright (C) 2010, 2011 GlavSoft LLC. |
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2 // All rights reserved. |
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3 // |
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4 //------------------------------------------------------------------------- |
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5 // This file is part of the TightVNC software. Please visit our Web site: |
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6 // |
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7 // http://www.tightvnc.com/ |
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8 // |
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9 // This program is free software; you can redistribute it and/or modify |
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10 // it under the terms of the GNU General Public License as published by |
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11 // the Free Software Foundation; either version 2 of the License, or |
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12 // (at your option) any later version. |
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13 // |
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14 // This program is distributed in the hope that it will be useful, |
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 // GNU General Public License for more details. |
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18 // |
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19 // You should have received a copy of the GNU General Public License along |
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20 // with this program; if not, write to the Free Software Foundation, Inc., |
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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22 //------------------------------------------------------------------------- |
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23 // |
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24 |
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25 package com.glavsoft.rfb.protocol; |
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26 |
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27 import com.glavsoft.drawing.Renderer; |
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28 import com.glavsoft.exceptions.CommonException; |
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29 import com.glavsoft.exceptions.ProtocolException; |
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30 import com.glavsoft.exceptions.TransportException; |
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31 import com.glavsoft.rfb.ClipboardController; |
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32 import com.glavsoft.rfb.IRepaintController; |
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33 import com.glavsoft.rfb.client.FramebufferUpdateRequestMessage; |
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34 import com.glavsoft.rfb.client.SetPixelFormatMessage; |
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35 import com.glavsoft.rfb.encoding.EncodingType; |
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36 import com.glavsoft.rfb.encoding.PixelFormat; |
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37 import com.glavsoft.rfb.encoding.decoder.Decoder; |
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38 import com.glavsoft.rfb.encoding.decoder.DecodersContainer; |
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39 import com.glavsoft.rfb.encoding.decoder.FramebufferUpdateRectangle; |
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40 import com.glavsoft.rfb.encoding.decoder.RichCursorDecoder; |
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41 import com.glavsoft.transport.Reader; |
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42 |
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43 import java.io.PrintWriter; |
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44 import java.io.StringWriter; |
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45 import java.util.logging.Logger; |
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46 |
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47 public class ReceiverTask implements Runnable { |
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48 private static final byte FRAMEBUFFER_UPDATE = 0; |
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49 private static final byte SET_COLOR_MAP_ENTRIES = 1; |
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50 private static final byte BELL = 2; |
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51 private static final byte SERVER_CUT_TEXT = 3; |
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52 |
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53 |
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54 private static Logger logger = Logger.getLogger("com.glavsoft.rfb.protocol.ReceiverTask"); |
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55 private final Reader reader; |
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56 private volatile boolean isRunning = false; |
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57 private Renderer renderer; |
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58 private final IRepaintController repaintController; |
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59 private final ClipboardController clipboardController; |
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60 private final DecodersContainer decoders; |
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61 private FramebufferUpdateRequestMessage fullscreenFbUpdateIncrementalRequest; |
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62 private final ProtocolContext context; |
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63 private PixelFormat pixelFormat; |
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64 private boolean needSendPixelFormat; |
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65 |
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66 public ReceiverTask(Reader reader, |
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67 IRepaintController repaintController, ClipboardController clipboardController, |
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68 DecodersContainer decoders, ProtocolContext context) { |
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69 this.reader = reader; |
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70 this.repaintController = repaintController; |
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71 this.clipboardController = clipboardController; |
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72 this.context = context; |
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73 this.decoders = decoders; |
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74 renderer = repaintController.createRenderer(reader, context.getFbWidth(), context.getFbHeight(), |
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75 context.getPixelFormat()); |
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76 fullscreenFbUpdateIncrementalRequest = |
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77 new FramebufferUpdateRequestMessage(0, 0, context.getFbWidth(), context.getFbHeight(), true); |
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78 } |
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79 |
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80 @Override |
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81 public void run() { |
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82 isRunning = true; |
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83 while (isRunning) { |
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84 try { |
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85 byte messageId = reader.readByte(); |
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86 switch (messageId) { |
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87 case FRAMEBUFFER_UPDATE: |
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88 // logger.fine("Server message: FramebufferUpdate (0)"); |
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89 framebufferUpdateMessage(); |
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90 break; |
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91 case SET_COLOR_MAP_ENTRIES: |
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92 logger.severe("Server message SetColorMapEntries is not implemented. Skip."); |
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93 setColorMapEntries(); |
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94 break; |
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95 case BELL: |
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96 logger.fine("Server message: Bell"); |
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97 System.out.print("\0007"); |
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98 System.out.flush(); |
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99 break; |
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100 case SERVER_CUT_TEXT: |
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101 logger.fine("Server message: CutText (3)"); |
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102 serverCutText(); |
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103 break; |
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104 default: |
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105 logger.severe("Unsupported server message. Id = " + messageId); |
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106 } |
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107 } catch (TransportException e) { |
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108 logger.severe("Close session: " + e.getMessage()); |
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109 if (isRunning) { |
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110 context.cleanUpSession("Connection closed."); |
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111 } |
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112 stopTask(); |
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113 } catch (ProtocolException e) { |
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114 logger.severe(e.getMessage()); |
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115 if (isRunning) { |
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116 context.cleanUpSession(e.getMessage() + "\nConnection closed."); |
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117 } |
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118 stopTask(); |
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119 } catch (CommonException e) { |
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120 logger.severe(e.getMessage()); |
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121 if (isRunning) { |
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122 context.cleanUpSession("Connection closed."); |
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123 } |
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124 stopTask(); |
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125 } catch (Throwable te) { |
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126 StringWriter sw = new StringWriter(); |
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127 PrintWriter pw = new PrintWriter(sw); |
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128 te.printStackTrace(pw); |
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129 if (isRunning) { |
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130 context.cleanUpSession(te.getMessage() + "\n" + sw.toString()); |
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131 } |
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132 stopTask(); |
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133 } |
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134 } |
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135 } |
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136 |
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137 private void setColorMapEntries() throws TransportException { |
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138 reader.readByte(); // padding |
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139 reader.readUInt16(); // first color index |
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140 int length = reader.readUInt16(); |
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141 while (length-- > 0) { |
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142 reader.readUInt16(); // R |
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143 reader.readUInt16(); // G |
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144 reader.readUInt16(); // B |
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145 } |
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146 } |
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147 |
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148 private void serverCutText() throws TransportException { |
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149 reader.readByte(); // padding |
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150 reader.readInt16(); // padding |
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151 int length = reader.readInt32() & Integer.MAX_VALUE; |
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152 clipboardController.updateSystemClipboard(reader.readBytes(length)); |
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153 } |
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154 |
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155 public void framebufferUpdateMessage() throws CommonException { |
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156 reader.readByte(); // padding |
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157 int numberOfRectangles = reader.readUInt16(); |
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158 while (numberOfRectangles-- > 0) { |
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159 FramebufferUpdateRectangle rect = new FramebufferUpdateRectangle(); |
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160 rect.fill(reader); |
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161 |
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162 Decoder decoder = decoders.getDecoderByType(rect.getEncodingType()); |
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163 logger.finest(rect.toString() + (0 == numberOfRectangles ? "\n---" : "")); |
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164 if (decoder != null) { |
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165 decoder.decode(reader, renderer, rect); |
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166 repaintController.repaintBitmap(rect); |
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167 } else if (rect.getEncodingType() == EncodingType.RICH_CURSOR) { |
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168 RichCursorDecoder.getInstance().decode(reader, renderer, rect); |
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169 repaintController.repaintCursor(); |
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170 } else if (rect.getEncodingType() == EncodingType.CURSOR_POS) { |
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171 renderer.decodeCursorPosition(rect); |
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172 repaintController.repaintCursor(); |
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173 } else if (rect.getEncodingType() == EncodingType.DESKTOP_SIZE) { |
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174 fullscreenFbUpdateIncrementalRequest = |
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175 new FramebufferUpdateRequestMessage(0, 0, rect.width, rect.height, true); |
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176 synchronized (renderer) { |
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177 renderer = repaintController.createRenderer(reader, rect.width, rect.height, |
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178 context.getPixelFormat()); |
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179 } |
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180 context.sendMessage(new FramebufferUpdateRequestMessage(0, 0, rect.width, rect.height, false)); |
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181 // repaintController.repaintCursor(); |
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182 } else |
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183 throw new CommonException("Unprocessed encoding: " + rect.toString()); |
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184 } |
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185 synchronized (this) { |
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186 if (needSendPixelFormat) { |
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187 needSendPixelFormat = false; |
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188 context.setPixelFormat(pixelFormat); |
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189 context.sendMessage(new SetPixelFormatMessage(pixelFormat)); |
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190 logger.fine("sent: "+pixelFormat); |
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191 context.sendRefreshMessage(); |
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192 logger.fine("sent: nonincremental fb update"); |
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193 } else { |
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194 context.sendMessage(fullscreenFbUpdateIncrementalRequest); |
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195 } |
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196 } |
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197 } |
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198 |
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199 public synchronized void queueUpdatePixelFormat(PixelFormat pf) { |
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200 pixelFormat = pf; |
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201 needSendPixelFormat = true; |
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202 // context.sendMessage(new FramebufferUpdateRequestMessage(0, 0, 1, 1, false)); |
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203 } |
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204 |
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205 public void stopTask() { |
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206 isRunning = false; |
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207 } |
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208 |
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209 } |